Run results for: moment vs date-fns (startofday)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

date-fns

270K/s

moment

201K/s

View exact numbers

Test name	Executions per second
✓ date-fns	269,638 Ops/sec
moment	201,265 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/date-fns/1.30.1/date_fns.min.js"></script>

Script Preparation code:

window.__date__ = new Date();
window.__expected__ = '2000/01/06';

Tests:

moment
var actual = moment(__date__).startOf('day').toISOString(); console.assert(actual === __expected__);
date-fns
var actual = dateFns.startOfDay(__date__).toISOString(); console.assert(actual === __expected__);

Run results for: moment vs date-fns (startofday)

It's not a deep validation; I'm just comparing ONE function that those two libraries have in common.

moment

date-fns